Multiple sclerosis and infection from an epidemiologic aspect.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003718:Denmark; D004165:Diphtheria / Q000453:epidemiology; D006801:Humans; D007223:Infant; D008457:Measles / Q000453:epidemiology; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000453:epidemiology*; D009107:Mumps / Q000453:epidemiology; D009664:Norway; D012541:Scarlet Fever / Q000453:epidemiology; D013557:Switzerland; D014917:Whooping Cough / Q000453:epidemiology